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List of geological units in Tokyo metropolis
A list of stratigraphic units, igneous bodies, and geological structures reported from Tokyo metropolis, Kanto region, Honshu island, Japan.
Photographs of geological units in Tokyo metropolis
- Permian (298.9-252.17 Ma)
- Onari formation?
- Triassic (252.17-201.3 Ma)
- Oguno formation
- Jurassic (201.3-145.0 Ma)
- Chichibu Belt
- Nariki Unit
- Raidenyama Unit
- Minokuchi Unit
- Southern Chichibu Belt
- Urayama Group
- Kawanori Unit
- Unazawa Unit
- Hikawa Unit
- Gozenyama Unit
- Shiromaru formation
- Takamizuyama Unit
- Fukazawa Unit
- Kawai formation
- Itsukaichi formation
- Tamagawa group
- Otaki group
- Cretaceous (145.0-66.0 Ma)
- Torinosu limestone
- Masutomi group
- Northern Shimanto Belt
- Ogochi Group
- Wanakurasawa Unit
- Ichinosawa Unit
- Kumotoriyama Unit
- Aoiwa formation
- Nanatsuishiyama formation
- Shiraiwayama formation
- Happyakudani Unit
- Koreisan Unit
- Funekubo formation
- Kobotoke Group
- Miyama Unit
- Bonborigawa Unit
- Kobuse Unit
- Southern Shimanto Belt
- Sagamiko Group
- Gongenyama Unit
- Eocene (56.0-33.9 Ma)
- Mikazukiyama Formation
- Asahiyama Formation
- Maruberiwan Formation
- John Beach Volcanics
- Sekimon Formation
- Nishiura Formation
- Higashidai Formtion
- Oligocene - Miocene
- Minamizaki Formation
- Miocene (23.03-5.33 Ma)
- Itsukaichimachi Group
- Ajiro Formation
- Akikawa Formation
- Yokosawa Sandstone and Mudstone Member
- Ina Sandstone Member
- Takao Tuff Member
- Tateya Mudstone Member
- Habu Tuff Member
- Kosho Mudstone Member
- Sajikami Conglomerate Member
- Tanzawa group (Misaka group)
- Mitosan Quartz Diorite
- Zenisu Volcanic Rocks
- Pliocene (5.33-2.58 Ma)
- Kazusa Group
- Narikigawa Formation
- Osoki Formation
- Tomoda Formation
- Yamada Formation
- Nihondake Formation
- Tomioka Formation
- Hanno Formation
- Onita Formation
- Kasumi Formation
- Tate Formation
- CGS 1 Tephra
- CGS 2 Tephra
- CGS 3 Tephra
- CGS 4 Tephra
- CGS 5 Tephra
- CGS 6 Tephra
- TMD 1 Tephra
- TMD 2 Tephra
- TMD 3 Tephra
- TMD 4 Tephra
- TMD 5 Tephra
- TMD 6 Tephra
- TMD 7 Tephra
- TMD 8 Tephra
- Sannotani Tephra
- Ongata Tephra
- Kol Tephra
- Pliocene - Pleistocene
- Kazusa Group (Kitatama group)
- Dedana Formation
- Inagi Formation
- Oyabe Formation
- Terada Formation
- Takatsu Formation
- Iimuro Formation
- Ikuta formation
- Edogawa Formation
- Toneri Formation
- Higashikurume Formation
- Kitatama Formation
- Kiwada Formation
- Fudeshima volcano
- Pleistocene (2.58- 0.01Ma)
- Kazusa Group
- Sayama Formation
- Yatsu Clay Member
- Mitsugi Conglomerate Member
- Mizuho Conglomerate Member
- Oyamada Formation
- Renkoji Formation
- Hirayama Formation
- Fukushima Formation
- Ongata Formation
- Motohachioji Formation
- Komiya Formation
- Tokyo Formation
- Tsurumi formation
- Setagaya Formation
- Musashino Terrace Deposit
- Gotentoge Terrace Deposit
- Gotentoge 1 Terrace Deposit
- Gotentoge 2 Terrace Deposit
- Gotentoge 3 Terrace Deposit
- Imokubo Formation
- Mine Formation
- Ome Formation
- Karaborigawa Formation
- Kuromegawa Formation
- Tokorozawa Formation
- Nakadai Formation
- Akabane Formation
- Kodaira Formation
- Narimasu Formation
- Aoyagi Formation
- Tachikawa 1 Formation
- Tachikawa 2 Formation
- Toshitorazu Formation
- Okata volcano
- Gyojanoiwaya volcano
- Oshima volcano
- Pre-caldera stage
- Older edifice
- Younger edifice
- Jinaijima volcano
- Niijima island
- Oiso volcano
- Jinakayama volcano
- Shimawakezawa Volcaniclastic Deposits
- Marushimamine volcano
- Setoyama volcano
- Daisanyama Volcaniclastic Deposits
- Minejiyama volcano
- Akazakinomine volcano
- Habushiiso volcano
- Miyatsukayama volcano
- Hatashironohana volcano
- Niijimayama volcano
- Kozushima island
- Menbo volcano
- Nagahama volcano
- Kannonura volcano
- Hashiruma volcano
- Sanukayama volcano
- 221m-yama volcano
- 262m-yama volcano
- Nachisan volcano
- Matsuyamabana volcano
- Osawa volcano
- Takodoyama volcano
- Jogoyama volcano
- Tadanaejima volcano
- Onbasejima volcano
- Kanto Loam
- Tachikawa Loam
- Musashino Loam
- Shimosueyoshi Loam (Kissawa loam bed)
- Tama Loam
- Tsuchihashi loam bed (Tsuchiya loam bed, Nanakunitoge loam bed)
- Tama II Loam
- Upper member (Soda formation, Maioka formation)
- Middle member (Fujisawa formation, Nishine formation)
- Lower member (Shimoniwa formation)
- Tama I Loam (Zasshoku loam bed, Sannodai loam bed)
- Kanekosaka loam bed
- Kurokawa Formation
- Kobiki Terrace Deposit
- Hino Terrace Deposit
- HU1
- HU2
- Zushi 2 Tephra
- SGO Tephra
- Kamiofune Tephra
- Yarimizu Tephra
- TN Tephra
- Shirobeta Tephra
- Ng-YR Tephra
- Hosoyama Tuff
- Motohachioji Tephra
- Nisemitukumi Pumice
- HdP-1
- HdP-2
- HdP-3
- Mitskumi Pumice
- HcP-1
- HcP-2
- HBP
- Oshinuma Pumice Group
- Go1 Tephra
- Go2 Tephra
- Sanshoku Ice pumice bed (SIP)
- KIP6 pumice bed
- KIP7 pumice bed
- KIP8 pumice bed
- Ontake-1 pumice bed (Pm-1)
- Obaradai pumice bed (OP, Kuriyokan pumice bed, KuP)
- Oya pumice bed (Kmp-7)
- Oyako pumice bed
- Tokyo pumice bed (TP)
- Aira-Tn pumice bed (AT, Tanzawa pumice bed, Tn)
- Aoiro scoria bed (BCVA)
- Miura pumice bed (MP)
- Black band bed (BB)
- Black band-2 bed (BB)
- UG tuff bed
- Biotite bed (BP)
- Biotite bed (BA)
- Bokeyotsu pumice bed
- Doran pumice bed
- Bireleys pumice bed
- Uwabami pumice bed
- Oshinuma formation
- Yamanote formation
- Tokyo conglomerate formation
- Narita group
- Byobugaura formation
Totohara formation
Nanagochi Formation
T2 River Terrace Deposit, Itsukaichi
Pleistocene-Holocene
Yurakucho Formation
- Oshima volcano
- Lateral volcanoes
- Sadoyama volcano
- Hachinoshiri volcano
- Atagoyama volcano
- Akappage volcano
- Mitsumine volcano
- 603.6m-yama volcano
- Omaruyama volcano
- Jinooka volcano
- Itonashi volcano
- Shikubo volcano
- Goishihama volcano
- Kotsuki volcano
- Shiroishiyama volcano
- Futagoyama volcano
- 480m-yama volcano
- 378.4m-yama volcano
- Toshima volcano
- Main stratovolcano
- Volcaniclastic deposits
Shikinejima volcano
Hanshima volcano
Udoneshima volcano
- Kozushima island
- Chichibuyama Pyroclastic Deposits
- Miyakejima volcano
- Main cone
- Main cone proper
- Older parasitic cone and crater
- Miogataira crater
- Miogataira Lava
- Nitanda crater
- Maruyama
- Daihannyayama
- Kuwanokitaira Parasitic Cone
- Anegakata Lava
- Oana
- Koshikiana
- Misodoana
- Suoana
- Yamamio explosion crater
- Furumio explosion crater
- Mizutamari explosion crater
- Kanaso explosion crater
- Miike explosion crater
- Mikurajima volcano
- Main stratovolcano
- Lava dome group
- Tsubunegamori Lava Dome
- 650m-oka Lava Dome
- Yasukajigamori Lava Dome
Inambajima volcano
- Hachijojima volcano
- Higashiyama volcano
- Central cone
- Parasitic crater
- Post-caldera cone
- Pre-caldera cone
- Old volcanoes
- Kojima volcano
- Goshotai volcano
- Yokomagaura volcano
Holocene (0.01-0 Ma)
City museum Formation
Yashiro Formation
Rinsenji Formation
Chigase Formation
Hatakenaka Formation
Amagase Formation
Kamiyashiki Formation
Kawasaki Formation
Akiruppara Formation
Haijima Formation
Midorimachi Formation
Tokumaru shell bed
Oji shell bed
Tabata shell bed
Takinogawa shell bed
- Oshima volcano
- Pre-caldera stage
- Younger edifice
- Syn-caldera stage
- S1 Member
- S' Member
- S2 Member
- Izu-Oshima S2-c Lahar Deposit
- Post-caldera stage
- Izu-Oshima 2013 Lahar Deposit
- 1954 Lava
- 1950 Lava
- Yuba Formation
- Y1 Member
- 1778 Lava
- Miharayama Scoria Cone
- Y2 Member
- Y3 Member
- Y4 Member
- Y5 Member
- Y6 Member
- Nomashi Formation
- N1 Member
- N2 Member
- N3 Member
- N4 Member
- Toshima volcano
- Parasitic crater lava
- Kajiana Lava
- Miana Lava
- Niijima island
- Wakago volcano
- Acchiyama volcano
- Mukaiyama volcano
- Mukaiyama Tephra
- Kozushima island
- Hanatate volcano
- Ananoyama volcano
- Kobeyama volcano
- Tenjosan volcano
- Tenjosan Tephra
- Miyakejima volcano
- Central cone
- Younger parasitic cone and crater
- 1940 Lava
- Hyotanyama Parasitic Cone
- Hyotanyama Lava
- H scoria cone
- G scoria cone
- F crater
- E craters
- D scoria cone
- Yoridaizawa Lava
- C crater
- B' craters
- Akabakyo Lava
- B scoria cone
- A scoria cone
- 1874 Lava
- 1835 Lava
- Shitori Lava
- Anafutatsu Parasitic Cone
- Usuki Lava
- Shinmio explosion crater
- Nippana Lava
- Kamikoshiki Parasitic Cone
- Sabigahama Lava
- Koshikiiwa Scoria Cone
- Imasaki Lava
- Ako Lava
- Benkenemisaki Lava
- Hachijojima volcano
- Nishiyama volcano
- Scoria cones
- Tuff cones
- Main cone
- Kaminatominato Lava
- Funatogahana Lava
- Nishiyamanantoroku Lava
- Nishinoshima volcano
- 1973-74 products
- Nishinoshima Lava
T3 River Terrace Deposit, Itsukaichi
T4 River Terrace Deposit, Itsukaichi
T5 River Terrace Deposit, Itsukaichi
Age unknown
Ibashi formation
Nakadai formation
Hino formation
Ekoda formation
Johoku formation
Tokorozawadai formation
Shirakogawa formation
Shimosueyoshi formation
- Izu-Oshima volcano
- Anei lava
- Showa lava
Geological structures
Butsuzo tectonic line